localization.guide
¥

JPY — Japanese Yen

fiat
ISO Code: JPYNumeric: 392ISO minor unit: 0Region: Asia
🇯🇵

Developer Note

No minor unit. Compact formatting uses 万 (man = 10,000) and 億 (oku = 100M).

Verified 2026-07-19. Primary source

How to implement JPY safely

Yen uses ISO 4217 alpha code JPY and numeric code 392.

JPY appears in the current ISO 4217 list published 2026-01-01. JPY has ISO minor unit 0, so the standard currency formatter normally displays no fractional digits. Configure Intl.NumberFormat with currency: "JPY"; do not hardcode the symbol or assume every currency uses two decimals.

¥ is the reference symbol in this dataset. Store JPY alongside the amount so exports, payments, and accounting data remain unambiguous. Format for display only after choosing the user's locale, because symbol placement and separators belong to the locale rather than the currency record.

This site's coverage associates JPY with 1 countries or territories (JP). Region and language still need separate locale selection; the currency code alone does not choose punctuation or digit shapes. The record was checked against the SIX ISO 4217 source on 2026-07-19; recheck status-sensitive records when the Maintenance Agency publishes a new list.

  • Status: active
  • Numeric code: 392
  • ISO minor unit: 0
  • Verified: 2026-07-19

Reviewed 19 July 2026. Sources: SIX ISO 4217 current list

Formatting Examples

Valueen-US
1¥1
9.99¥10
100¥100
1234.56¥1,235
1000000¥1,000,000

Intl.NumberFormat

JavaScript
// Basic JPY formatting
new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'JPY',
}).format(1234.00);
// → "¥1,234"

// Minimum/maximum fraction digits
new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'JPY',
  minimumFractionDigits: 0,
  maximumFractionDigits: 0,
}).format(99);
// Example display precision: 0 decimal places
// ISO 4217 minor unit: 0

// Integer minor-unit storage
// JPY amount = value × 1

Countries Using JPY

🇯🇵

Japan

ja-JP

¥1,234,568

Continue your localization implementation

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Formatting implementation

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Failure patterns

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Standards reference

ISO country, currency, and language codes; BCP 47; E.164; and UPU S42.

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Locale-aware numbers

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